Interacting method for ue fast selecting mobile communication network to access in a wlan interworking network

Abstract

The present invention discloses an interacting method for WLAN UE fast selecting an optimal mobile communication network to access in WLAN, first a WLAN UE judges whether the identity information of the WLAN AN exists in the WLAN identity information stored when mobile connection with the WLAN AN is established, if so, the network selection information corresponding to the identity of the WLAN stored will be sent to the WLAN AN, otherwise, a pre-configured mobile communication network with highest priority is regarded as network selection information to be sent to the WLAN AN; the WLAN AN identifies the mobile communication network to access according to the network selection information carried in Authentication Request, and connects the WLAN UE to the selected network to implement authentication. The method makes the WLAN UE select a mobile communication network to access rapidly when the WLAN UE accesses from a WLAN connected with multiple mobile communication networks.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a National Stage of Patent Cooperation Treaty (PCT) Application No. PCT / CN2004 / 001042 filed Sep. 13, 2004, entitled, A FAST INTERACTIVE METHOD OF USER TERMINAL IN THE WIRELESS LOCAL AREA NETWORK (WLAN) SELECTING ACCESS MOBILE NETWORK, which claims priority to Chinese Patent Application No. CN 03143395.2 filed Sep. 30, 2003, all of the disclosure of which are hereby incorporated by reference in their entirety.FIELD OF THE TECHNOLOGY [0002] The present invention relates to network access technologies, and particularly to an interacting method for User Equipment (UE) fast optimal access mobile communication network in a Wireless Local Area Network (WLAN) interworking network. BACKGROUND OF THE INVENTION [0003] With the increasing demand of users for radio access rate, WLAN emerges as the time require, for it can provide a fast wireless data access within a relatively small region. WLAN involves various kinds of techniqu...

AI Technical Summary

Benefits of technology

[0016] According to the interacting method for WLAN UE fast access an optimal mobile communication network in a WLAN provided by this invention, when the WLAN UE sends an Authentication Request carrying the network selection information of itself to the WLAN AN, it firstly compares the identity information of the current WLAN with the identity information stored in itself, if there is a good match, the network selection information corresponding to the identity stored in the WLAN UE will be sent to the WLAN AN; otherwise, the pre-configured mobile communication network with the highest priority will be sent to the WLAN AN as the network selection information, so that it can guarantee that roaming users can select a mobile communication network to access in time, and repeated selection of the AN can be avoided each time the WLAN UE accesses, so the WLAN UE can select a mobile communication network to access rapidly according to its demands.

Problems solved by technology

However, if the WLAN UE implements network selection every time it accesses, the network resource will be greatly consumed.

In this procedure, the WLAN network sends network selection information to the WLAN UE who will access a network after judging and selecting, which will consume the network resource and delay the access.

However, for the WLAN UE who has accessed a new WLAN network, simply adopting the previously selected mobile communication network may not guarantee that the current selected network is an optimal PLMN network.

However, since there has been a default or selected mobile communication network to route, new network selection can not be implemented anymore, which means the WLAN UE can not be guaranteed to select an optimal PLMN network, such as a HPLMN, in the current WLAN.

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